Tenagodus barbadensis is a species of sea snail, a marine gastropod mollusk in the family Siliquariidae. Distribution Barbados. Description The maximum recorded shell length is 48.9 mm. Habitat Minimum recorded depth is 101 m. Maximum recorded depth is 101 m. It lives as an obligatory commensal on certain species of sponges from families Halichondriidae and Thrombidae. References Siliquariidae Gastropods described in 2004